Answer / thowsif_csm_emerson

1.Online ups - Sinusoidal Wave from.
2.Offline ups - Quasi Sine Wave from.
3.Inverter - Sine Wave from.

Answer / gmanieee@yahoo.co.in

3.Iverter-square wave form

how much load should be given on 5 mva transformer

7 Answers   NTPC, OHPC, Power Grid,

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What is the difference of grounding and earthing?

6 Answers  

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what is reactive power is it good or bad for a system

5 Answers  

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What is the vector group of a transformer,how can it be found out?

0 Answers   Jindal,

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determine two methods to find loose connection in operational electrical system?

0 Answers  

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My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

0 Answers   Premier,

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what is brushless alternator?

0 Answers  

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what was the function of the auxillary relay?

3 Answers  

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aeroline vibration is present

1 Answers   DVC,

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Why Lead-Acid cell voltage is 2.1 volt, why we can not chenged it cell voltage by using extra row-material, only incries its AH.

1 Answers  

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What will happen if i used 11KV earth ht kit to 11 KV / 11 KV cable termination?

0 Answers  

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What does OHB stand for in specifications for circuit breakers, especially found in SF6 circuit breaker?

1 Answers  

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